Canon imageRUNNER ADVANCE C5051 Series Service Manual page 66

2
Technology■>■Laser■Exposure■System■>■Overview■>■Overview
Laser■Exposure■System
Overview
■ Overview ■
To■realize■the■high-speed■printing,■this■machine■adopts■the■2■Laser■Scanner■Units■and■the■
Laser■Driver■of■each■color■executes■laser■scanning■with■4-beam.
imageRUNNER■ADVANCE■C5051■/■C5045■employs■4■beam■and■C5035■/■5030■employs■2■
beam.
Imaging Lens
Skew Correction Motor Bk (M34)
Skew Correction Motor Y (M31)
Imaging Lens
Skew Correction
Motor M (M32)
Bk
Y
Scanner
Mirror
M
Scanner
Mirror
Laser Scanner Unit 1
Laser A
Laser B
Laser C
Laser Driver PCB M (UN12)
Laser D
This■machine■emits■the■laser■to■the■image■area■on■the■drum■negatively-charged.
Non-image area
2 Technology■>■Laser■Exposure■System■>■Overview■>■Overview
Skew Correction Motor C (M33)
Laser Scanner Unit 2
C
BD Sensor (C, Bk)
Laser Driver PCB C (UN15)
Laser Driver PCB Bk (UN14)
BD Sensor (Y, M)
Laser Driver PCB Y (UN13)
Image area
Non-image area
Laser ON
Enlarged view
F-2-45
Laser Scanner Unit 1
Imaging Lens
Reflection Mirror
Reflection Mirror
Scanner
Mirror
Laser
Driver
(M)
Reflection Y
Mirror
Imaging
Lens
Reflection
Mirror
Laser
Scanner
Driver
Mirror
(M)
F-2-44
Laser Scanner Unit 2
Laser Laser Laser
Driver Driver Driver
(Y) (Bk) (C)
M C Bk
Laser
Laser Laser
Scanner
Driver
Driver Driver
Mirror
(Y) (Bk)
2-30
Reflection
Mirror
Imaging
Lens
Reflection
Mirror
(C)
F-2-46
2-30